Dude!! Just after you complete sbf, most times you have to go into stock recovery and wipe data reset and it will boot up!! Give it a few minutes...pull batter when it bootloops for more than five minutes, then factory reset..as long as its completed the install you won't have to do it again!!!
One Epic Blue and Bold Cm7(otaGBK) .----->fastforward!
ok. been 7 minutes. giving her another go. droid x 2 stock recovery......*home key+ down rocker+ power* ? been using the bootstrap the whole time.